Hardware Design and Deployment Issues in UHF RFID Systems

Jang, Byung-Jun; Yoon, Hyun-Goo; Lim, Jae-Bong

doi:2009.9.1.39

J. Electromagn. Eng. Sci > Volume 9(1); 2009 > Article

Journal of the Korean Institute of Electromagnetic and Science 2009;9(1):39-45.
DOI: https://doi.org/10.5515/JKIEES.2009.9.1.039

Hardware Design and Deployment Issues in UHF RFID Systems

Byung-Jun Jang¹, Hyun-Goo Yoon², Jae-Bong Lim¹

¹Department of Electronics Eng., Kookmin University
²Department of Computer and Electronic Eng., Myongji College

Abstract

In this paper, we discuss hardware design and deployment issues in current passive UHF RFID systems. Using the link budget concept, the methodology to calculate forward- and reverse-link interrogation range is shown. Then, we consider hardware issues: phase diversity, phase noise with range correlation, and TX leakage problems. Finally, three interference problems when deploying RFID systems are presented.

Key words: RFID, Reader, Tag, Antenna, Link budget, Interrogation Range, Interference